Collection Views with UIKit Quick Guide

Collection Views with UIKit

Swift 5.6 | iOS 15

With this guide, you will learn how to configure and display items in a grid with Collection Views. After reading this guide, you will know how to work with Collection Views, how to define and configure custom cells, and how to create modern lists.

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Description

Quick Guides for Masterminds are excerpts from our best-selling books SwiftUI for Masterminds, UIKit for Masterminds, and HTML5 for Masterminds, providing a cost-effective alternative to getting the information you need.

With this guide, you will learn how to configure and display items in a grid with Collection Views. After reading this guide, you will know how to work with Collection Views, how to define and configure custom cells, and how to create modern lists.

Table of Contents

COLLECTION VIEWS

Collection Views

Collection View Cells

Collection View Delegate

Data Source

Implementing Collection Views

Flow Layout

Custom Layout

Supplementary Views

Sections

Lists

Examples

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Listing 1: Creating a Collection View cell

Listing 2: Defining a model for a diffable data source

Listing 3: Configuring a Collection View

Listing 4: Configuring the background of a Collection View cell

Listing 5: Configuring Flow layout

Listing 6: Declaring a specific size for each cell

Listing 7: Assigning a compositional layout to the Collection View

Listing 8: Customizing a compositional layout

Listing 9: Defining a reusable view

Listing 10: Defining the supplementary views

Listing 11: Adding supplementary views to a compositional layout

Listing 12: Storing the data in sections

Listing 13: Working with multiple sections

Listing 14: Snapshot for multiple sections

Listing 15: Defining a model to test section snapshots

Listing 16: Moving items between section snapshots

Listing 17: Creating a Collection View List

Listing 18: Defining the header for a list

Listing 19: Adding supplementary views to the list

Listing 20: Configuring cell's separators

Listing 21: Adding accessories to the cells

Listing 22: Selecting and deselecting a cell in a list

Listing 23: Defining the buttons for swipe gestures

Listing 24: Defining a model for a hierarchical list

Listing 25: Creating a hierarchical list

Links

UICollectionView
https://developer.apple.com/reference/uikit/uicollectionview

UICollectionViewDiffableDataSource
https://developer.apple.com/documentation/uikit/uicollectionviewdiffabledatasource

UICollectionViewFlowLayout
https://developer.apple.com/reference/uikit/uicollectionviewflowlayout

UICollectionViewDelegate
https://developer.apple.com/reference/uikit/uicollectionviewdelegate

UICollectionViewDataSource
https://developer.apple.com/reference/uikit/uicollectionviewdatasource

UICollectionReusableView
https://developer.apple.com/reference/uikit/uicollectionreusableview

UICollectionViewLayout
https://developer.apple.com/reference/uikit/uicollectionviewlayout

Resources

Books

For Masterminds books include everything you need to develop professional applications. Create amazing websites and insanely great apps for iPhones, iPads and Mac computers.

Apple Intelligence for Masterminds
2nd Edition 2026

SwiftUI for Masterminds
7th Edition 2026

Swift for Masterminds
2nd Edition 2026

HTML5 for Masterminds
4th Edition 2026